AR-15 Russian Made Rifle - TK509 Russian New Gun - SK Weapon
How the US AR-15 rifle was reborn in Russia.
The TK509 is a semi-automatic pistol with blowback. The weapon is marketed as smoothbore due to the new .345 TK cartridge and 305-mm Paradox-style barrel (i.e. it has a section with grooves to stabilize the bullet and twist it during flight).
